The conversation between the three is what makes Supergirl such a great show. Here's how you can watch it online. Download to watch offline and even view it on a big screen using Chromecast. The second season of Supergirl premiered on October 10, 2016 on The CW and concluded on May 22, 2017. Click here and start watching the full episode in seconds. It premiered on October 14, 2018, and concluded on May 19, 2019. Colonel Haley reclaims the site as DEO territory and demands that Supergirl step aside. Main cast Melissa Benoist as Kara Danvers/Supergirl, Mehcad Brooks as James Olsen/Guardian, Chyler Leigh … After Supergirl refuses to be told what to do, Haley refocuses her energy on finding out Supergirl's true identity and begins to interrogate all DEO agents, including Alex. On Supergirl Season 4 Episode 2, a shocking revelation causes chaos in National City and Supergirl heads off in an attempt to capture Mercy Graves. Buy Supergirl: Season 3 Episode 2 on Google Play, then watch on your PC, Android, or iOS devices. The complete guide by MSN. What I really love about this season of Supergirl is the continued dedication to character development. Tonight's episode didn't necessarily fix the glaring villain problem on the show, but it definitely shined in the character development department. ... Supergirl recap: Season 2, Episode 4 ... that’s been the case for most of the episodes this season. Back From The Future - Part Two (Ep.512) Original Air Date: 2.16.20 ... Supergirl season 2, episode 4 recap continued . The season consisted of 22 episodes. Supergirl Season 2, Episode 4, Survivors, is reviewed by Empire. Buy Supergirl: Season 3 Episode 2 on Google Play, then watch on your PC, Android, or iOS devices. The season consisted of 22 episodes. Watch Supergirl season 2 episode 4 online. Supergirl was renewed for a fourth season by The CW on April 2, 2018. Stream Supergirl FREE on The CW. Supergirl takes down an underground alien fight club and J'onn tries to bond with M'Gann. Supergirl has three episodes left in its fourth season and tonight's episode will return to Eve and Lex's storyline.